レイサンマガモ vs tiny risso snail

Anas laysanensis compared with Rissoa parva

Key Differences

• レイサンマガモ is Critically Endangered while tiny risso snail is Least Concern.

Taxonomic Classification

Rank	レイサンマガモ	tiny risso snail
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Chordata (脊索動物)	Mollusca (軟体動物)
Class	Aves (鳥類)	Gastropoda (腹足綱)
Order	Anseriformes (カモ目)	Littorinimorpha (タマキビガイ下目)
Family	Anatidae	Rissoidae
Genus	Anas	Rissoa
Species	Anas laysanensis	Rissoa parva

Evolutionary Relationship

レイサンマガモ and tiny risso snail share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

レイサンマガモ

CR — Critically Endangered

tiny risso snail

LC — Least Concern

Physical Characteristics

Attribute	レイサンマガモ	tiny risso snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

レイサンマガモ

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

tiny risso snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

レイサンマガモ

レイサンガモ（Anas laysanensis）はIUCNレッドリストで絶滅寸前（CR）に分類されています。深刻な個体数減少と生息地の喪失により、野生での絶滅リスクが極めて高い種です。

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway